SOLUTION: the average age of 5 boys is 10, 2 new boys joined the group making the group average age 12, if the new boys are of the same age what is their actual age
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Question 934678: the average age of 5 boys is 10, 2 new boys joined the group making the group average age 12, if the new boys are of the same age what is their actual age Answer by TimothyLamb(4379) (Show Source):
You can put this solution on YOUR website! x = age of new boy A
y = age of new boy B
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(10*5 + x + y)/7 = 12
x = y
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put the system of linear equations into standard form
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x + y = 12*7 - 50
x - y = 0
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x + y = 34
x - y = 0
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copy and paste the above standard form linear equations in to this solver:
https://sooeet.com/math/system-of-linear-equations-solver.php
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solution:
solution:
x = age of new boy A = 17
y = age of new boy B = 17
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